Ray, do you have any contemporary evidence that John's middle name was really Owings? It seems to me that the 'O' was actually a mark (like the Robert 'R' McKee), which appears on his marriage license. My memory is a bit hazy, though. I think his daughter Abigail did have a middle name 'Owings,' according to a copy of a letter you sent me.
If I recall, the Owings family, from Maryland, were Catholics.
Also, do you have any evidence that Abigail's father was John Lane? I think there was a John Lane somewhere around Allegheny County, but I've never found anything on him.
Did you hear any vague traditions about McKee origins from the people at the reunion? It would be nice if anyone had stories similar to what my great-aunt had about Scottish seamen and the McKeesport relationship.